Exhaust-valve for engine-mufflers.



I. BARRAJA-FRAUENFELDER.

EXHAUST VALVE FOR ENGINE MUFFLERS.

APPLICATION FI LED DEC. h 1914.

Patented July 10, 1917.

3 SHEETS-$HEETI Ill/MENTOR J,BARRAJAQFRAUENFELDER. EXHAUST VALVE FOR ENGINE MUFFLERS.

' APPLICATION HLED 05 0.1, 1914.

Patented July 10, 1917. I

3 SHEETS-SHEET 2- INVENTOH mgmmm J. BARRAJA-FRAUENFE LDER.

EXHAUST VALVE FOR. ENGINE MUFF LERSI APPLICATION F|LED DEC. II 1914.

JOSEPH BABRAJ'A-FRAUENFELDER, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE LAKE TORPEDO BOAT COMPANY OF MAINE, 0F FAIRFIELD, CONNECTICUT, A COR- PORATION OF MAINE.

EXHAUST-VALVE FOR ENGINE-MUFFLERS.

Specification of Letters Patent. Patentlgd J [11y 10, 191.?-

Application filed December 1, 1914. Serial No. 875,038.

To all whom it may concern: Be it known that I, JOSEPH BARRAJA- FRAUENFELDER, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvemerits in Exhaust-Valves for Engine-Mufflers, of which the following is a specification.

The invention relates to improvements in exhaust valves employed for controlling the inlets to and outlets from exhaust mufflers used in connection with submarine or sub mersible boats and through which the exhaust gases from the internal combustion engines are directed before being allowed to escape into the atmosphere.

The object of the invention is to provide a simple and efficient construction to permit the grinding of the co-acting surfaces of the valve and its seat whereby to clean the valve and its seat of the carbon collected thereon and without the necessity of removing the valve or the taking apart of its casing or fittings as is necessary with the constructions of valves now in use, the arrangement being such that the valve may be adjusted so as to be ground from within the main hull of the boat by the hand wheel employed for opening and closing the valve.

The invention consists in providing the peculiar features of construction, combination and arrangement of parts as will be hereinafter described and then claimed.

In the drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a diagrammatic longitudinal section drawn through a portion of the hull and the superstructure of a submarine or submersible boat illustrating the application of the invention. Fig. 2 is a front view of one of the valves controlling the passages through the muffler connected to the engines of the boat. Fig. 3 is a horizontal section drawn on a larger scale on the line aa of Fig. 2. Fig. 4 is a vertical transverse section drawn on the line bb of Fig. 2; Fig. 5 is a horizontal section drawn on a larger scale on the line 0-0 of Fig. 4.

1 designates a section of the main hull of a submarine or submersible boat, 2. asection of the superstructure thereof, and 3 the exhaust muffler arranged in the superstructure. The mufiier is connected at one end with the exhaust manifold of the engines (not shown), through a pipe 4 extending into the main hull of the boat and provided with an exhaust valve 5, said pipe opening at its opposite end to the space formed by the superstructure through an outlet 6 controlled by an exhaust check valve 6 having its stem extended into the main hull and provided with an operating handle as will hereinafter be described.

The valve 6 is designed to be closed when the boat is to be submerged to thus prevent inlet of water to the exhaust mufiler, and the valve 5 serves as a check to prevent water entering the engines or their exhaust manifolds in the event of leakage through the valve 6 or injury to the mufller. As the valves are'of like construction and operation I will describe only one and will apply the corresponding numerals to both valves throughout the several figures of the drawings.

Each valve is constructed with a water jacketed casing 7, Fig. 4, and with a horizontally disposed inlet 8 and a vertically disposed outlet 9, the outer ends of the inlet and outlet openings being surrounded by flanges 9 by which the casings are connected to the adjacent sections of the pipe 4 or to the manifold, as the case may be. At the lower end of the vertical wall of the out let the casing is formed with a valve seat 10 against which seats a valve 11, the stem 11 of which is hollow and extends downwardly through the bonnet 12 of the casing, and through a stufiing box 12 formed therein, and has its lower end threaded as at 13, which threaded section works through a cylindrical nut 14 rotatably held in a sleeve 15 formed at the lower end of a yoke 16 secured'to and depending from the lower face of the bonnet 12 of the valve casing. The upper end of the nut 14 is formed with a flange 14, which rests upon the top of the sleeve 15 and has its lower end externally threaded to receive a nut 17 between which, and the lower end of the sleeve 15, is held a hand wheel 18, secured to the nut 14 by a key 19 so as to cause the nut to rotate with the hand wheel. When locked together the nut 14 constitutes the hub of the wheel 18. Intermediate its ends the stem 11 of the valve is formed with a spline 20 adapted to receive a feather 21 formed upon a horizontally swinginglocking bar 22 pivotally held atone end" upon a bolt 23 passing through ,para'llel ears 23 formed integral with one arm of the yoke 16, and between which the said end ofthe bar is held. The opposite end of the bar 22 is formed. with an eye adapted to fit between parallel ears 24 formed upon the opposite arm of the yoke, the free end of the bar being held in place by a pin '24 which passes through the ears and f ing it away from its seat, I provide the stem of the valve with looking nuts 25 and 26 working upon said stem, respectively, above and below the cylindrical'nut 14E, andwhich are designed to be threaded against the ends of said nut to thus lock the latter to the said stem to thereby cause it to rotate with the nut when the hand wheel is operated. When it isde'sired to grind the valve the locking bar 22 is swung outwardly as shown in Fig.

" 3, to unlock the valve stem and so that the nut '25 may be, screwed down upon the top ,of the nut 14, the nut 26 being then screwed up against the lower end of the nut 14: to thus lock the latter to the stem 11.

As shown the valve is hollow providing a water-jacket one side thereof being higher than the other, the upper face of the valve being concaved or dished thereby providing suitable deflection for the gases passing through the valve casing. Water is admitted to the water jacket of the valve through a pipe 30 extending through the stem of the valve and which is of smaller diameter than the bore of said stem so as to provide an outlet around the pipe for the water forced into the jacket of the valve. The lower end of the valve stem is provided with a pipe coupling 31 to which is connected the supply pipe and off-take pipe (not shown) for supplying and carrying off the cooling water to the valve.

From theiforegoing it will be seen that I provide an exceedingly simple apparatus whereby the valves of the mufller may be quickly ground. without necessitating the removal of any of the parts of the valve casing or any, other adjustments other than the unlocking of the valve stem to permit its rot'ation and the clamping of the stem to the H nut 14:, which constitutes the hub of the hand wheel, so that when the hand wheel is justment away from its seat.

operated the valve will not be subject to ad- IVhile I have shown and described. my invention for use in connection with exhaust valves of mufliers used in submarine boats it is to be understood that the invention is not limited to this use as it will be evident that the same may be used to equal. advantage upon other valves upon which foreign. substances may collect and which require removal to permit the valve to fit perfectly upon its seat.

What I claim is 1. In a submarine boat, an exhaust conduit and a valve connected therewith, means exterior to the conduit for moving said valve toward and away from its seat, means for holding said valve against rotation during such movement, said means being releasable to permit rotation of said valve.

2. In a submarine boat, an exhaust conduit and a valve connected therewith, means exterior to the conduit for holding said valve against rotation, means for moving said valve toward and away from its seat while so held, said holding means being releasable to permit rotation of said valve, and means to hold said valve against reciprocation when being rotated.

3. In a submarine boat, a valve for exhaust gases, means exterior to the valve casing for holding said valve against rotation, means for moving said valve toward and away from its seat when so held, said holding means being releasable to permit rotation, and means for holding said valve against its seat when rotated.

41;. In an exhaust valve, a casing and valve working therein, releasable means exterior to the valve casing engaging the stem of said valve to hold the same against rotation, means connected to said stem to move said valve toward and away from its seat, and means carried by said stem to hold the same against vertical movement when the valve is rotated, the stem engaging means being releasable.

5. In an exhaust valve, a casing having a yoke connected thereto, a valve within said casing and having its stem extending through said yoke, locking means carried by the yoke for holding the stem against rotation but permitting its vertical movement, said locking means being releasable, means for moving said valve toward and away from its seat, and means carried by said stem for holding said stem against vertical movement during rotation when said looking means is released.

6. In an exhaust valve, a casing having a yoke, a valve in said casin and having a stem extending through said yoke, means carried by said yoke and stem to cause reciprocation, means carried by said yoke to hold said stem against rotation during reciprocation, said means being releasable, and means carried by said stem for holding said stem against vertical movement during rotation after the release of the holding means.

7. In an exhaust valve, a casing having a yoke, a valve in said casing and having a threaded stem extending through said yoke, a rotatable sleeve carried by said yoke and adapted to move said stem through said sleeve when said stem is held against rotation, means carried by said yoke for looking said stem against rotation, said locking means being releasable, and means carried by the stem and adapted to engage said sleeve to cause the stem to rotate without reciprocation When said locking means is released.

8. In an exhaust valve, a casing having a yoke, a valve operating in said casing having a threadedstem extending through said yoke, a threaded sleeve carried by said yoke through which the said stem passes, and with the threads of which it cooperates, nuts threaded upon said stem adapted to engage the opposite ends of said sleeve, means for looking said stem against rotation for the purpose specified, and means for reciprocating said stem.

9. In an exhaust valve, a casing having a yoke, a hollow valve having a hollow threaded stem, said stem extending through the yoke, a threaded sleeve in said yoke engaging the threaded stem and provided with means for rotation, a releasable lock carried by the yoke and adapted to engage a groove in the threaded stem to prevent rotation during reciprocation, and nuts upon opposite sides of said sleeve adapted to engage the ends thereof to hold the stem against reciprocation during rotation when said lock is released, as set forth.

In testimony whereof I have hereunto set my hand this 19th day of November, A. D. 1914:.

JOSEPH BARRAJA-FRAUENFELDER.

Witnesses:

PHILIP B. BRILL, E. G. GALLAGHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

